From Wikimedia; spots throughout image removed with Photoshop by gogm.
Essentially, here we go again. Marie Antoinette's bodice has turned red, but the headdressing is similar to the 1775 d'Agoty portrait.
Keywords: 1775, d'Agoty, Marie-Antoinette, Archduchess, Queen, Habsburg family, Bourbon family, French, long high straight coiffure, jeweled feathered headdress, hair jewelry, scoop neckline, modesty piece, lace, puffed cloth ornaments, jeweled bodice ornament, robes